text: /**
   * @license Highcharts JS v7.2.1 (2019-10-31)
   *
   * Highcharts Drilldown module
   *
   * Author: Torstein Honsi
   * License: www.highcharts.com/license
   *
   */
  'use strict';
  (function (factory) {
      if (typeof module === 'object' && module.exports) {
          factory['default'] = factory;
          module.exports = factory;
      } else if (typeof define === 'function' && define.amd) {
          define('highcharts/modules/drilldown', ['highcharts'], function (Highcharts) {
              factory(Highcharts);
              factory.Highcharts = Highcharts;
              return factory;
          });
      } else {
          factory(typeof Highcharts !== 'undefined' ? Highcharts : undefined);
      }
  }(function (Highcharts) {
      var _modules = Highcharts ? Highcharts._modules : {};
      function _registerModule(obj, path, args, fn) {
          if (!obj.hasOwnProperty(path)) {
              obj[path] = fn.apply(null, args);
          }
      }
      _registerModule(_modules, 'modules/drilldown.src.js', [_modules['parts/Globals.js'], _modules['parts/Utilities.js']], function (H, U) {
          /* *
           *
           *  Highcharts Drilldown module
           *
           *  Author: Torstein Honsi
           *
           *  License: www.highcharts.com/license
           *
           *  !!!!!!! SOURCE GETS TRANSPILED BY TYPESCRIPT. EDIT TS FILE ONLY. !!!!!!!
           *
           * */
          /**
           * Gets fired when a drilldown point is clicked, before the new series is added.
           * Note that when clicking a category label to trigger multiple series
           * drilldown, one `drilldown` event is triggered per point in the category.
           *
           * @callback Highcharts.DrilldownCallbackFunction
           *
           * @param {Highcharts.Chart} this
           *        The chart where the event occurs.
           *
           * @param {Highcharts.DrilldownEventObject} e
           *        The drilldown event.
           */
          /**
           * The event arguments when a drilldown point is clicked.
           *
           * @interface Highcharts.DrilldownEventObject
           */ /**
          * If a category label was clicked, which index.
          * @name Highcharts.DrilldownEventObject#category
          * @type {number|undefined}
          */ /**
          * The original browser event (usually click) that triggered the drilldown.
          * @name Highcharts.DrilldownEventObject#originalEvent
          * @type {global.Event|undefined}
          */ /**
          * Prevents the default behaviour of the event.
          * @name Highcharts.DrilldownEventObject#preventDefault
          * @type {Function}
          */ /**
          * The originating point.
          * @name Highcharts.DrilldownEventObject#point
          * @type {Highcharts.Point}
          */ /**
          * If a category label was clicked, this array holds all points corresponing to
          * the category. Otherwise it is set to false.
          * @name Highcharts.DrilldownEventObject#points
          * @type {boolean|Array<Highcharts.Point>|undefined}
          */ /**
          * Options for the new series. If the event is utilized for async drilldown, the
          * seriesOptions are not added, but rather loaded async.
          * @name Highcharts.DrilldownEventObject#seriesOptions
          * @type {Highcharts.SeriesOptionsType|undefined}
          */ /**
          * The event target.
          * @name Highcharts.DrilldownEventObject#target
          * @type {Highcharts.Chart}
          */ /**
          * The event type.
          * @name Highcharts.DrilldownEventObject#type
          * @type {"drilldown"}
          */
          /**
           * This gets fired after all the series have been drilled up. This is especially
           * usefull in a chart with multiple drilldown series.
           *
           * @callback Highcharts.DrillupAllCallbackFunction
           *
           * @param {Highcharts.Chart} this
           *        The chart where the event occurs.
           *
           * @param {Highcharts.DrillupAllEventObject} e
           *        The final drillup event.
           */
          /**
           * The event arguments when all the series have been drilled up.
           *
           * @interface Highcharts.DrillupAllEventObject
           */ /**
          * Prevents the default behaviour of the event.
          * @name Highcharts.DrillupAllEventObject#preventDefault
          * @type {Function}
          */ /**
          * The event target.
          * @name Highcharts.DrillupAllEventObject#target
          * @type {Highcharts.Chart}
          */ /**
          * The event type.
          * @name Highcharts.DrillupAllEventObject#type
          * @type {"drillupall"}
          */
          /**
           * Gets fired when drilling up from a drilldown series.
           *
           * @callback Highcharts.DrillupCallbackFunction
           *
           * @param {Highcharts.Chart} this
           *        The chart where the event occurs.
           *
           * @param {Highcharts.DrillupEventObject} e
           *        The drillup event.
           */
          /**
           * The event arguments when drilling up from a drilldown series.
           *
           * @interface Highcharts.DrillupEventObject
           */ /**
          * Prevents the default behaviour of the event.
          * @name Highcharts.DrillupEventObject#preventDefault
          * @type {Function}
          */ /**
          * Options for the new series.
          * @name Highcharts.DrillupEventObject#seriesOptions
          * @type {Highcharts.SeriesOptionsType|undefined}
          */ /**
          * The event target.
          * @name Highcharts.DrillupEventObject#target
          * @type {Highcharts.Chart}
          */ /**
          * The event type.
          * @name Highcharts.DrillupEventObject#type
          * @type {"drillup"}
          */
          var extend = U.extend, objectEach = U.objectEach, pick = U.pick, syncTimeout = U.syncTimeout;
          var animObject = H.animObject, noop = H.noop, color = H.color, defaultOptions = H.defaultOptions, format = H.format, Chart = H.Chart, seriesTypes = H.seriesTypes, PieSeries = seriesTypes.pie, ColumnSeries = seriesTypes.column, Tick = H.Tick, fireEvent = H.fireEvent, ddSeriesId = 1;
          // Add language
          extend(defaultOptions.lang, 
          /**
           * @optionparent lang
           */
          {
              /**
               * The text for the button that appears when drilling down, linking back
               * to the parent series. The parent series' name is inserted for
               * `{series.name}`.
               *
               * @since    3.0.8
               * @product  highcharts highmaps
               * @requires modules/drilldown
               *
               * @private
               */
              drillUpText: '◁ Back to {series.name}'
          });
          /**
           * Options for drill down, the concept of inspecting increasingly high
           * resolution data through clicking on chart items like columns or pie slices.
           *
           * The drilldown feature requires the drilldown.js file to be loaded,
           * found in the modules directory of the download package, or online at
           * [code.highcharts.com/modules/drilldown.js
           * ](code.highcharts.com/modules/drilldown.js).
           *
           * @product      highcharts highmaps
           * @requires     modules/drilldown
           * @optionparent drilldown
           */
          defaultOptions.drilldown = {
              /**
               * When this option is false, clicking a single point will drill down
               * all points in the same category, equivalent to clicking the X axis
               * label.
               *
               * @sample {highcharts} highcharts/drilldown/allowpointdrilldown-false/
               *         Don't allow point drilldown
               *
               * @type      {boolean}
               * @default   true
               * @since     4.1.7
               * @product   highcharts
               * @apioption drilldown.allowPointDrilldown
               */
              /**
               * An array of series configurations for the drill down. Each series
               * configuration uses the same syntax as the [series](#series) option set.
               * These drilldown series are hidden by default. The drilldown series is
               * linked to the parent series' point by its `id`.
               *
               * @type      {Array<Highcharts.SeriesOptionsType>}
               * @since     3.0.8
               * @product   highcharts highmaps
               * @apioption drilldown.series
               */
              /**
               * Additional styles to apply to the X axis label for a point that
               * has drilldown data. By default it is underlined and blue to invite
               * to interaction.
               *
               * In styled mode, active label styles can be set with the
               * `.highcharts-drilldown-axis-label` class.
               *
               * @sample {highcharts} highcharts/drilldown/labels/
               *         Label styles
               *
               * @type    {Highcharts.CSSObject}
               * @default { "cursor": "pointer", "color": "#003399", "fontWeight": "bold", "textDecoration": "underline" }
               * @since   3.0.8
               * @product highcharts highmaps
               */
              activeAxisLabelStyle: {
                  /** @ignore-option */
                  cursor: 'pointer',
                  /** @ignore-option */
                  color: '#003399',
                  /** @ignore-option */
                  fontWeight: 'bold',
                  /** @ignore-option */
                  textDecoration: 'underline'
              },
              /**
               * Additional styles to apply to the data label of a point that has
               * drilldown data. By default it is underlined and blue to invite to
               * interaction.
               *
               * In styled mode, active data label styles can be applied with the
               * `.highcharts-drilldown-data-label` class.
               *
               * @sample {highcharts} highcharts/drilldown/labels/
               *         Label styles
               *
               * @type    {Highcharts.CSSObject}
               * @default { "cursor": "pointer", "color": "#003399", "fontWeight": "bold", "textDecoration": "underline" }
               * @since   3.0.8
               * @product highcharts highmaps
               */
              activeDataLabelStyle: {
                  cursor: 'pointer',
                  color: '#003399',
                  fontWeight: 'bold',
                  textDecoration: 'underline'
              },
              /**
               * Set the animation for all drilldown animations. Animation of a drilldown
               * occurs when drilling between a column point and a column series,
               * or a pie slice and a full pie series. Drilldown can still be used
               * between series and points of different types, but animation will
               * not occur.
               *
               * The animation can either be set as a boolean or a configuration
               * object. If `true`, it will use the 'swing' jQuery easing and a duration
               * of 500 ms. If used as a configuration object, the following properties
               * are supported:
               *
               * - `duration`: The duration of the animation in milliseconds.
               *
               * - `easing`: A string reference to an easing function set on the `Math`
               *   object. See
               *   [the easing demo](https://jsfiddle.net/gh/get/library/pure/highcharts/highcharts/tree/master/samples/highcharts/plotoptions/series-animation-easing/).
               *
               * @type    {boolean|Highcharts.AnimationOptionsObject}
               * @default { "duration": 500 }
               * @since   3.0.8
               * @product highcharts highmaps
               */
              animation: {
                  /** @ignore-option */
                  duration: 500
              },
              /**
               * Options for the drill up button that appears when drilling down on a
               * series. The text for the button is defined in
               * [lang.drillUpText](#lang.drillUpText).
               *
               * @sample {highcharts} highcharts/drilldown/drillupbutton/
               *         Drill up button
               * @sample {highmaps} highcharts/drilldown/drillupbutton/
               *         Drill up button
               *
               * @since   3.0.8
               * @product highcharts highmaps
               */
              drillUpButton: {
                  /**
                   * What box to align the button to. Can be either `plotBox` or
                   * `spacingBox`.
                   *
                   * @type       {Highcharts.ButtonRelativeToValue}
                   * @default    plotBox
                   * @since      3.0.8
                   * @product    highcharts highmaps
                   * @apioption  drilldown.drillUpButton.relativeTo
                   */
                  /**
                   * A collection of attributes for the button. The object takes SVG
                   * attributes like `fill`, `stroke`, `stroke-width` or `r`, the border
                   * radius. The theme also supports `style`, a collection of CSS
                   * properties for the text. Equivalent attributes for the hover state
                   * are given in `theme.states.hover`.
                   *
                   * In styled mode, drill-up button styles can be applied with the
                   * `.highcharts-drillup-button` class.
                   *
                   * @sample {highcharts} highcharts/drilldown/drillupbutton/
                   *         Button theming
                   * @sample {highmaps} highcharts/drilldown/drillupbutton/
                   *         Button theming
                   *
                   * @type      {object}
                   * @since     3.0.8
                   * @product   highcharts highmaps
                   * @apioption drilldown.drillUpButton.theme
                   */
                  /**
                   * Positioning options for the button within the `relativeTo` box.
                   * Available properties are `x`, `y`, `align` and `verticalAlign`.
                   *
                   * @type    {Highcharts.AlignObject}
                   * @since   3.0.8
                   * @product highcharts highmaps
                   */
                  position: {
                      /**
                       * Vertical alignment of the button.
                       *
                       * @type      {Highcharts.VerticalAlignValue}
                       * @default   top
                       * @product   highcharts highmaps
                       * @apioption drilldown.drillUpButton.position.verticalAlign
                       */
                      /**
                       * Horizontal alignment.
                       *
                       * @type {Highcharts.AlignValue}
                       */
                      align: 'right',
                      /**
                       * The X offset of the button.
                       */
                      x: -10,
                      /**
                       * The Y offset of the button.
                       */
                      y: 10
                  }
              }
          };
          /**
           * Fires when a drilldown point is clicked, before the new series is added. This
           * event is also utilized for async drilldown, where the seriesOptions are not
           * added by option, but rather loaded async. Note that when clicking a category
           * label to trigger multiple series drilldown, one `drilldown` event is
           * triggered per point in the category.
           *
           * Event arguments:
           *
           * - `category`: If a category label was clicked, which index.</dd>
           *
           * - `originalEvent`: The original browser event (usually click) that triggered
           *   the drilldown.
           *
           * - `point`: The originating point.
           *
           * - `points`: If a category label was clicked, this array holds all points
           *   corresponing to the category.</dd>
           *
           * - `seriesOptions`: Options for the new series.
           *
           * @sample {highcharts} highcharts/drilldown/async/
           *         Async drilldown
           *
           * @type      {Highcharts.DrilldownCallbackFunction}
           * @since     3.0.8
           * @product   highcharts highmaps
           * @context   Highcharts.Chart
           * @requires  modules/drilldown
           * @apioption chart.events.drilldown
           */
          /**
           * Fires when drilling up from a drilldown series.
           *
           * @type      {Highcharts.DrillupCallbackFunction}
           * @since     3.0.8
           * @product   highcharts highmaps
           * @context   Highcharts.Chart
           * @requires  modules/drilldown
           * @apioption chart.events.drillup
           */
          /**
           * In a chart with multiple drilldown series, this event fires after all the
           * series have been drilled up.
           *
           * @type      {Highcharts.DrillupAllCallbackFunction}
           * @since     4.2.4
           * @product   highcharts highmaps
           * @context   Highcharts.Chart
           * @requires  modules/drilldown
           * @apioption chart.events.drillupall
           */
          /**
           * The `id` of a series in the [drilldown.series](#drilldown.series) array to
           * use for a drilldown for this point.
           *
           * @sample {highcharts} highcharts/drilldown/basic/
           *         Basic drilldown
           *
           * @type      {string}
           * @since     3.0.8
           * @product   highcharts
           * @requires  modules/drilldown
           * @apioption series.line.data.drilldown
           */
          /**
           * A general fadeIn method.
           *
           * @requires module:modules/drilldown
           *
           * @function Highcharts.SVGElement#fadeIn
           *
           * @param {boolean|Highcharts.AnimationOptionsObject} [animation]
           *        The animation options for the element fade.
           *
           * @return {void}
           */
          H.SVGRenderer.prototype.Element.prototype.fadeIn = function (animation) {
              this
                  .attr({
                  opacity: 0.1,
                  visibility: 'inherit'
              })
                  .animate({
                  opacity: pick(this.newOpacity, 1) // newOpacity used in maps
              }, animation || {
                  duration: 250
              });
          };
          /**
           * Add a series to the chart as drilldown from a specific point in the parent
           * series. This method is used for async drilldown, when clicking a point in a
           * series should result in loading and displaying a more high-resolution series.
           * When not async, the setup is simpler using the
           * [drilldown.series](https://api.highcharts.com/highcharts/drilldown.series)
           * options structure.
           *
           * @sample highcharts/drilldown/async/
           *         Async drilldown
           *
           * @function Highcharts.Chart#addSeriesAsDrilldown
           *
           * @param {Highcharts.Point} point
           *        The point from which the drilldown will start.
           *
           * @param {Highcharts.SeriesOptionsType} options
           *        The series options for the new, detailed series.
           *
           * @return {void}
           */
          Chart.prototype.addSeriesAsDrilldown = function (point, options) {
              this.addSingleSeriesAsDrilldown(point, options);
              this.applyDrilldown();
          };
          Chart.prototype.addSingleSeriesAsDrilldown = function (point, ddOptions) {
              var oldSeries = point.series, xAxis = oldSeries.xAxis, yAxis = oldSeries.yAxis, newSeries, pointIndex, levelSeries = [], levelSeriesOptions = [], level, levelNumber, last, colorProp;
              colorProp = this.styledMode ?
                  { colorIndex: pick(point.colorIndex, oldSeries.colorIndex) } :
                  { color: point.color || oldSeries.color };
              if (!this.drilldownLevels) {
                  this.drilldownLevels = [];
              }
              levelNumber = oldSeries.options._levelNumber || 0;
              // See if we can reuse the registered series from last run
              last = this.drilldownLevels[this.drilldownLevels.length - 1];
              if (last && last.levelNumber !== levelNumber) {
                  last = undefined;
              }
              ddOptions = extend(extend({
                  _ddSeriesId: ddSeriesId++
              }, colorProp), ddOptions);
              pointIndex = oldSeries.points.indexOf(point);
              // Record options for all current series
              oldSeries.chart.series.forEach(function (series) {
                  if (series.xAxis === xAxis && !series.isDrilling) {
                      series.options._ddSeriesId =
                          series.options._ddSeriesId || ddSeriesId++;
                      series.options._colorIndex = series.userOptions._colorIndex;
                      series.options._levelNumber =
                          series.options._levelNumber || levelNumber; // #3182
                      if (last) {
                          levelSeries = last.levelSeries;
                          levelSeriesOptions = last.levelSeriesOptions;
                      }
                      else {
                          levelSeries.push(series);
                          // (#10597)
                          series.purgedOptions = H.merge({
                              _ddSeriesId: series.options._ddSeriesId,
                              _levelNumber: series.options._levelNumber,
                              selected: series.options.selected
                          }, series.userOptions);
                          levelSeriesOptions.push(series.purgedOptions);
                      }
                  }
              });
              // Add a record of properties for each drilldown level
              level = extend({
                  levelNumber: levelNumber,
                  seriesOptions: oldSeries.options,
                  seriesPurgedOptions: oldSeries.purgedOptions,
                  levelSeriesOptions: levelSeriesOptions,
                  levelSeries: levelSeries,
                  shapeArgs: point.shapeArgs,
                  // no graphic in line series with markers disabled
                  bBox: point.graphic ? point.graphic.getBBox() : {},
                  color: point.isNull ?
                      new H.Color(color).setOpacity(0).get() :
                      color,
                  lowerSeriesOptions: ddOptions,
                  pointOptions: oldSeries.options.data[pointIndex],
                  pointIndex: pointIndex,
                  oldExtremes: {
                      xMin: xAxis && xAxis.userMin,
                      xMax: xAxis && xAxis.userMax,
                      yMin: yAxis && yAxis.userMin,
                      yMax: yAxis && yAxis.userMax
                  },
                  resetZoomButton: this.resetZoomButton
              }, colorProp);
              // Push it to the lookup array
              this.drilldownLevels.push(level);
              // Reset names to prevent extending (#6704)
              if (xAxis && xAxis.names) {
                  xAxis.names.length = 0;
              }
              newSeries = level.lowerSeries = this.addSeries(ddOptions, false);
              newSeries.options._levelNumber = levelNumber + 1;
              if (xAxis) {
                  xAxis.oldPos = xAxis.pos;
                  xAxis.userMin = xAxis.userMax = null;
                  yAxis.userMin = yAxis.userMax = null;
              }
              // Run fancy cross-animation on supported and equal types
              if (oldSeries.type === newSeries.type) {
                  newSeries.animate = newSeries.animateDrilldown || noop;
                  newSeries.options.animation = true;
              }
          };
          Chart.prototype.applyDrilldown = function () {
              var drilldownLevels = this.drilldownLevels, levelToRemove;
              if (drilldownLevels && drilldownLevels.length > 0) { // #3352, async loading
                  levelToRemove = drilldownLevels[drilldownLevels.length - 1].levelNumber;
                  this.drilldownLevels.forEach(function (level) {
                      if (level.levelNumber === levelToRemove) {
                          level.levelSeries.forEach(function (series) {
                              // Not removed, not added as part of a multi-series
                              // drilldown
                              if (series.options &&
                                  series.options._levelNumber === levelToRemove) {
                                  series.remove(false);
                              }
                          });
                      }
                  });
              }
              // We have a reset zoom button. Hide it and detatch it from the chart. It
              // is preserved to the layer config above.
              if (this.resetZoomButton) {
                  this.resetZoomButton.hide();
                  delete this.resetZoomButton;
              }
              this.pointer.reset();
              this.redraw();
              this.showDrillUpButton();
              fireEvent(this, 'afterDrilldown');
          };
          Chart.prototype.getDrilldownBackText = function () {
              var drilldownLevels = this.drilldownLevels, lastLevel;
              if (drilldownLevels && drilldownLevels.length > 0) { // #3352, async loading
                  lastLevel = drilldownLevels[drilldownLevels.length - 1];
                  lastLevel.series = lastLevel.seriesOptions;
                  return format(this.options.lang.drillUpText, lastLevel);
              }
          };
          Chart.prototype.showDrillUpButton = function () {
              var chart = this, backText = this.getDrilldownBackText(), buttonOptions = chart.options.drilldown.drillUpButton, attr, states;
              if (!this.drillUpButton) {
                  attr = buttonOptions.theme;
                  states = attr && attr.states;
                  this.drillUpButton = this.renderer.button(backText, null, null, function () {
                      chart.drillUp();
                  }, attr, states && states.hover, states && states.select)
                      .addClass('highcharts-drillup-button')
                      .attr({
                      align: buttonOptions.position.align,
                      zIndex: 7
                  })
                      .add()
                      .align(buttonOptions.position, false, buttonOptions.relativeTo || 'plotBox');
              }
              else {
                  this.drillUpButton.attr({
                      text: backText
                  })
                      .align();
              }
          };
          /**
           * When the chart is drilled down to a child series, calling `chart.drillUp()`
           * will drill up to the parent series.
           *
           * @function Highcharts.Chart#drillUp
           *
           * @return {void}
           *
           * @requires  modules/drilldown
           */
          Chart.prototype.drillUp = function () {
              if (!this.drilldownLevels || this.drilldownLevels.length === 0) {
                  return;
              }
              var chart = this, drilldownLevels = chart.drilldownLevels, levelNumber = drilldownLevels[drilldownLevels.length - 1].levelNumber, i = drilldownLevels.length, chartSeries = chart.series, seriesI, level, oldSeries, newSeries, oldExtremes, addSeries = function (seriesOptions) {
                  var addedSeries;
                  chartSeries.forEach(function (series) {
                      if (series.options._ddSeriesId === seriesOptions._ddSeriesId) {
                          addedSeries = series;
                      }
                  });
                  addedSeries = addedSeries || chart.addSeries(seriesOptions, false);
                  if (addedSeries.type === oldSeries.type &&
                      addedSeries.animateDrillupTo) {
                      addedSeries.animate = addedSeries.animateDrillupTo;
                  }
                  if (seriesOptions === level.seriesPurgedOptions) {
                      newSeries = addedSeries;
                  }
              };
              while (i--) {
                  level = drilldownLevels[i];
                  if (level.levelNumber === levelNumber) {
                      drilldownLevels.pop();
                      // Get the lower series by reference or id
                      oldSeries = level.lowerSeries;
                      if (!oldSeries.chart) { // #2786
                          seriesI = chartSeries.length; // #2919
                          while (seriesI--) {
                              if (chartSeries[seriesI].options.id ===
                                  level.lowerSeriesOptions.id &&
                                  chartSeries[seriesI].options._levelNumber ===
                                      levelNumber + 1) { // #3867
                                  oldSeries = chartSeries[seriesI];
                                  break;
                              }
                          }
                      }
                      oldSeries.xData = []; // Overcome problems with minRange (#2898)
                      level.levelSeriesOptions.forEach(addSeries);
                      fireEvent(chart, 'drillup', { seriesOptions: level.seriesOptions });
                      if (newSeries.type === oldSeries.type) {
                          newSeries.drilldownLevel = level;
                          newSeries.options.animation =
                              chart.options.drilldown.animation;
                          if (oldSeries.animateDrillupFrom && oldSeries.chart) { // #2919
                              oldSeries.animateDrillupFrom(level);
                          }
                      }
                      newSeries.options._levelNumber = levelNumber;
                      oldSeries.remove(false);
                      // Reset the zoom level of the upper series
                      if (newSeries.xAxis) {
                          oldExtremes = level.oldExtremes;
                          newSeries.xAxis.setExtremes(oldExtremes.xMin, oldExtremes.xMax, false);
                          newSeries.yAxis.setExtremes(oldExtremes.yMin, oldExtremes.yMax, false);
                      }
                      // We have a resetZoomButton tucked away for this level. Attatch
                      // it to the chart and show it.
                      if (level.resetZoomButton) {
                          chart.resetZoomButton = level.resetZoomButton;
                          chart.resetZoomButton.show();
                      }
                  }
              }
              this.redraw();
              if (this.drilldownLevels.length === 0) {
                  this.drillUpButton = this.drillUpButton.destroy();
              }
              else {
                  this.drillUpButton.attr({
                      text: this.getDrilldownBackText()
                  })
                      .align();
              }
              this.ddDupes.length = []; // #3315
              // Fire a once-off event after all series have been drilled up (#5158)
              fireEvent(chart, 'drillupall');
          };
          /* eslint-disable no-invalid-this */
          // Add update function to be called internally from Chart.update (#7600)
          Chart.prototype.callbacks.push(function () {
              var chart = this;
              chart.drilldown = {
                  update: function (options, redraw) {
                      H.merge(true, chart.options.drilldown, options);
                      if (pick(redraw, true)) {
                          chart.redraw();
                      }
                  }
              };
          });
          // Don't show the reset button if we already are displaying the drillUp button.
          H.addEvent(Chart, 'beforeShowResetZoom', function () {
              if (this.drillUpButton) {
                  return false;
              }
          });
          H.addEvent(Chart, 'render', function () {
              (this.xAxis || []).forEach(function (axis) {
                  axis.ddPoints = {};
                  axis.series.forEach(function (series) {
                      var i, xData = series.xData || [], points = series.points, p;
                      for (i = 0; i < xData.length; i++) {
                          p = series.options.data[i];
                          // The `drilldown` property can only be set on an array or an
                          // object
                          if (typeof p !== 'number') {
                              // Convert array to object (#8008)
                              p = series.pointClass.prototype.optionsToObject
                                  .call({ series: series }, p);
                              if (p.drilldown) {
                                  if (!axis.ddPoints[xData[i]]) {
                                      axis.ddPoints[xData[i]] = [];
                                  }
                                  axis.ddPoints[xData[i]].push(points ? points[i] : true);
                              }
                          }
                      }
                  });
                  // Add drillability to ticks, and always keep it drillability updated
                  // (#3951)
                  objectEach(axis.ticks, Tick.prototype.drillable);
              });
          });
          /**
           * When drilling up, keep the upper series invisible until the lower series has
           * moved into place.
           *
           * @private
           * @function Highcharts.ColumnSeries#animateDrillupTo
           * @param {boolean} [init=false]
           *        Whether to initialize animation
           * @return {void}
           */
          ColumnSeries.prototype.animateDrillupTo = function (init) {
              if (!init) {
                  var newSeries = this, level = newSeries.drilldownLevel;
                  // First hide all items before animating in again
                  this.points.forEach(function (point) {
                      var dataLabel = point.dataLabel;
                      if (point.graphic) { // #3407
                          point.graphic.hide();
                      }
                      if (dataLabel) {
                          // The data label is initially hidden, make sure it is not faded
                          // in (#6127)
                          dataLabel.hidden = dataLabel.attr('visibility') === 'hidden';
                          if (!dataLabel.hidden) {
                              dataLabel.hide();
                              if (point.connector) {
                                  point.connector.hide();
                              }
                          }
                      }
                  });
                  // Do dummy animation on first point to get to complete
                  syncTimeout(function () {
                      if (newSeries.points) { // May be destroyed in the meantime, #3389
                          newSeries.points.forEach(function (point, i) {
                              // Fade in other points
                              var verb = i === (level && level.pointIndex) ? 'show' : 'fadeIn', inherit = verb === 'show' ? true : undefined, dataLabel = point.dataLabel;
                              if (point.graphic) { // #3407
                                  point.graphic[verb](inherit);
                              }
                              if (dataLabel && !dataLabel.hidden) { // #6127
                                  dataLabel.fadeIn(); // #7384
                                  if (point.connector) {
                                      point.connector.fadeIn();
                                  }
                              }
                          });
                      }
                  }, Math.max(this.chart.options.drilldown.animation.duration - 50, 0));
                  // Reset
                  this.animate = noop;
              }
          };
          ColumnSeries.prototype.animateDrilldown = function (init) {
              var series = this, chart = this.chart, drilldownLevels = chart.drilldownLevels, animateFrom, animationOptions = animObject(chart.options.drilldown.animation), xAxis = this.xAxis, styledMode = chart.styledMode;
              if (!init) {
                  drilldownLevels.forEach(function (level) {
                      if (series.options._ddSeriesId ===
                          level.lowerSeriesOptions._ddSeriesId) {
                          animateFrom = level.shapeArgs;
                          if (!styledMode) {
                              // Add the point colors to animate from
                              animateFrom.fill = level.color;
                          }
                      }
                  });
                  animateFrom.x += pick(xAxis.oldPos, xAxis.pos) - xAxis.pos;
                  this.points.forEach(function (point) {
                      var animateTo = point.shapeArgs;
                      if (!styledMode) {
                          // Add the point colors to animate to
                          animateTo.fill = point.color;
                      }
                      if (point.graphic) {
                          point.graphic
                              .attr(animateFrom)
                              .animate(extend(point.shapeArgs, { fill: point.color || series.color }), animationOptions);
                      }
                      if (point.dataLabel) {
                          point.dataLabel.fadeIn(animationOptions);
                      }
                  });
                  this.animate = null;
              }
          };
          /**
           * When drilling up, pull out the individual point graphics from the lower
           * series and animate them into the origin point in the upper series.
           *
           * @private
           * @function Highcharts.ColumnSeries#animateDrillupFrom
           * @param {Highcharts.DrilldownLevelObject} level
           *        Level container
           * @return {void}
           */
          ColumnSeries.prototype.animateDrillupFrom = function (level) {
              var animationOptions = animObject(this.chart.options.drilldown.animation), group = this.group, 
              // For 3d column series all columns are added to one group
              // so we should not delete the whole group. #5297
              removeGroup = group !== this.chart.columnGroup, series = this;
              // Cancel mouse events on the series group (#2787)
              series.trackerGroups.forEach(function (key) {
                  if (series[key]) { // we don't always have dataLabelsGroup
                      series[key].on('mouseover');
                  }
              });
              if (removeGroup) {
                  delete this.group;
              }
              this.points.forEach(function (point) {
                  var graphic = point.graphic, animateTo = level.shapeArgs, complete = function () {
                      graphic.destroy();
                      if (group && removeGroup) {
                          group = group.destroy();
                      }
                  };
                  if (graphic) {
                      delete point.graphic;
                      if (!series.chart.styledMode) {
                          animateTo.fill = level.color;
                      }
                      if (animationOptions.duration) {
                          graphic.animate(animateTo, H.merge(animationOptions, { complete: complete }));
                      }
                      else {
                          graphic.attr(animateTo);
                          complete();
                      }
                  }
              });
          };
          if (PieSeries) {
              extend(PieSeries.prototype, {
                  animateDrillupTo: ColumnSeries.prototype.animateDrillupTo,
                  animateDrillupFrom: ColumnSeries.prototype.animateDrillupFrom,
                  animateDrilldown: function (init) {
                      var level = this.chart.drilldownLevels[this.chart.drilldownLevels.length - 1], animationOptions = this.chart.options.drilldown.animation, animateFrom = level.shapeArgs, start = animateFrom.start, angle = animateFrom.end - start, startAngle = angle / this.points.length, styledMode = this.chart.styledMode;
                      if (!init) {
                          this.points.forEach(function (point, i) {
                              var animateTo = point.shapeArgs;
                              if (!styledMode) {
                                  animateFrom.fill = level.color;
                                  animateTo.fill = point.color;
                              }
                              if (point.graphic) {
                                  point.graphic
                                      .attr(H.merge(animateFrom, {
                                      start: start + i * startAngle,
                                      end: start + (i + 1) * startAngle
                                  }))[animationOptions ? 'animate' : 'attr'](animateTo, animationOptions);
                              }
                          });
                          this.animate = null;
                      }
                  }
              });
          }
          H.Point.prototype.doDrilldown = function (_holdRedraw, category, originalEvent) {
              var series = this.series, chart = series.chart, drilldown = chart.options.drilldown, i = (drilldown.series || []).length, seriesOptions;
              if (!chart.ddDupes) {
                  chart.ddDupes = [];
              }
              while (i-- && !seriesOptions) {
                  if (drilldown.series[i].id === this.drilldown &&
                      chart.ddDupes.indexOf(this.drilldown) === -1) {
                      seriesOptions = drilldown.series[i];
                      chart.ddDupes.push(this.drilldown);
                  }
              }
              // Fire the event. If seriesOptions is undefined, the implementer can check
              // for  seriesOptions, and call addSeriesAsDrilldown async if necessary.
              fireEvent(chart, 'drilldown', {
                  point: this,
                  seriesOptions: seriesOptions,
                  category: category,
                  originalEvent: originalEvent,
                  points: (category !== undefined &&
                      this.series.xAxis.getDDPoints(category).slice(0))
              }, function (e) {
                  var chart = e.point.series && e.point.series.chart, seriesOptions = e.seriesOptions;
                  if (chart && seriesOptions) {
                      if (_holdRedraw) {
                          chart.addSingleSeriesAsDrilldown(e.point, seriesOptions);
                      }
                      else {
                          chart.addSeriesAsDrilldown(e.point, seriesOptions);
                      }
                  }
              });
          };
          /**
           * Drill down to a given category. This is the same as clicking on an axis
           * label.
           *
           * @private
           * @function Highcharts.Axis#drilldownCategory
           * @param {number} x
           *        Tick position
           * @param {global.MouseEvent} e
           *        Click event
           * @return {void}
           */
          H.Axis.prototype.drilldownCategory = function (x, e) {
              objectEach(this.getDDPoints(x), function (point) {
                  if (point &&
                      point.series &&
                      point.series.visible &&
                      point.doDrilldown) { // #3197
                      point.doDrilldown(true, x, e);
                  }
              });
              this.chart.applyDrilldown();
          };
          /**
           * Return drillable points for this specific X value.
           *
           * @private
           * @function Highcharts.Axis#getDDPoints
           * @param {number} x
           *        Tick position
           * @return {Array<(boolean|Highcharts.Point)>|undefined}
           *         Drillable points
           */
          H.Axis.prototype.getDDPoints = function (x) {
              return this.ddPoints && this.ddPoints[x];
          };
          /**
           * Make a tick label drillable, or remove drilling on update.
           *
           * @private
           * @function Highcharts.Axis#drillable
           * @return {void}
           */
          Tick.prototype.drillable = function () {
              var pos = this.pos, label = this.label, axis = this.axis, isDrillable = axis.coll === 'xAxis' && axis.getDDPoints, ddPointsX = isDrillable && axis.getDDPoints(pos), styledMode = axis.chart.styledMode;
              if (isDrillable) {
                  if (label && ddPointsX && ddPointsX.length) {
                      label.drillable = true;
                      if (!label.basicStyles && !styledMode) {
                          label.basicStyles = H.merge(label.styles);
                      }
                      label
                          .addClass('highcharts-drilldown-axis-label')
                          .on('click', function (e) {
                          axis.drilldownCategory(pos, e);
                      });
                      if (!styledMode) {
                          label.css(axis.chart.options.drilldown.activeAxisLabelStyle);
                      }
                  }
                  else if (label && label.drillable) {
                      if (!styledMode) {
                          label.styles = {}; // reset for full overwrite of styles
                          label.css(label.basicStyles);
                      }
                      label.on('click', null); // #3806
                      label.removeClass('highcharts-drilldown-axis-label');
                  }
              }
          };
          // On initialization of each point, identify its label and make it clickable.
          // Also, provide a list of points associated to that label.
          H.addEvent(H.Point, 'afterInit', function () {
              var point = this, series = point.series;
              if (point.drilldown) {
                  // Add the click event to the point
                  H.addEvent(point, 'click', function (e) {
                      if (series.xAxis &&
                          series.chart.options.drilldown.allowPointDrilldown ===
                              false) {
                          // #5822, x changed
                          series.xAxis.drilldownCategory(point.x, e);
                      }
                      else {
                          point.doDrilldown(undefined, undefined, e);
                      }
                  });
              }
              return point;
          });
          H.addEvent(H.Series, 'afterDrawDataLabels', function () {
              var css = this.chart.options.drilldown.activeDataLabelStyle, renderer = this.chart.renderer, styledMode = this.chart.styledMode;
              this.points.forEach(function (point) {
                  var dataLabelsOptions = point.options.dataLabels, pointCSS = pick(point.dlOptions, dataLabelsOptions && dataLabelsOptions.style, {});
                  if (point.drilldown && point.dataLabel) {
                      if (css.color === 'contrast' && !styledMode) {
                          pointCSS.color = renderer.getContrast(point.color || this.color);
                      }
                      if (dataLabelsOptions && dataLabelsOptions.color) {
                          pointCSS.color = dataLabelsOptions.color;
                      }
                      point.dataLabel
                          .addClass('highcharts-drilldown-data-label');
                      if (!styledMode) {
                          point.dataLabel
                              .css(css)
                              .css(pointCSS);
                      }
                  }
              }, this);
          });
          var applyCursorCSS = function (element, cursor, addClass, styledMode) {
              element[addClass ? 'addClass' : 'removeClass']('highcharts-drilldown-point');
              if (!styledMode) {
                  element.css({ cursor: cursor });
              }
          };
          // Mark the trackers with a pointer
          H.addEvent(H.Series, 'afterDrawTracker', function () {
              var styledMode = this.chart.styledMode;
              this.points.forEach(function (point) {
                  if (point.drilldown && point.graphic) {
                      applyCursorCSS(point.graphic, 'pointer', true, styledMode);
                  }
              });
          });
          H.addEvent(H.Point, 'afterSetState', function () {
              var styledMode = this.series.chart.styledMode;
              if (this.drilldown && this.series.halo && this.state === 'hover') {
                  applyCursorCSS(this.series.halo, 'pointer', true, styledMode);
              }
              else if (this.series.halo) {
                  applyCursorCSS(this.series.halo, 'auto', false, styledMode);
              }
          });
  
      });
      _registerModule(_modules, 'masters/modules/drilldown.src.js', [], function () {
  
  
      });
  }));